Header logo is ei

Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook

2011

Article

ei


GRavitational lEnsing Accuracy Testing 2010 (GREAT10) is a public image analysis challenge aimed at the development of algorithms to analyze astronomical images. Specifically, the challenge is to measure varying image distortions in the presence of a variable convolution kernel, pixelization and noise. This is the second in a series of challenges set to the astronomy, computer science and statistics communities, providing a structured environment in which methods can be improved and tested in preparation for planned astronomical surveys. GREAT10 extends upon previous work by introducing variable fields into the challenge. The “Galaxy Challenge” involves the precise measurement of galaxy shape distortions, quantified locally by two parameters called shear, in the presence of a known convolution kernel. Crucially, the convolution kernel and the simulated gravitational lensing shape distortion both now vary as a function of position within the images, as is the case for real data. In addition, we introduce the “Star Challenge” that concerns the reconstruction of a variable convolution kernel, similar to that in a typical astronomical observation. This document details the GREAT10 Challenge for potential participants. Continually updated information is also available from www.greatchallenges.info.

Author(s): Kitching, T. and Amara, A. and Gill, M. and Harmeling, S. and Heymans, C. and Massey, R. and Rowe, B. and Schrabback, T. and Voigt, L. and Balan, S. and Bernstein, G. and Bethge, M. and Bridle, S. and Courbin, F. and Gentile, M. and Heavens, A. and Hirsch, M. and Hosseini, R. and Kiessling, A. and Kirk, D. and Kuijken, K. and Mandelbaum, R. and Moghaddam, B. and Nurbaeva, G. and Paulin-Henriksson, S. and Rassat, A. and Rhodes, J. and Schölkopf, B. and Shawe-Taylor, J. and Shmakova, M. and Taylor, A. and Velander, M. and van Waerbeke, L. and Witherick, D. and Wittman, D.
Journal: Annals of Applied Statistics
Volume: 5
Number (issue): 3
Pages: 2231-2263
Year: 2011
Month: September
Day: 0

Department(s): Empirical Inference
Bibtex Type: Article (article)

Digital: 0
DOI: 10.1214/11-AOAS484

Links: PDF
Web

BibTex

@article{KitchingAGHHMRSVBBBBCGHHHKKKMMNPRRSSSTVvWW2011,
  title = {Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook},
  author = {Kitching, T. and Amara, A. and Gill, M. and Harmeling, S. and Heymans, C. and Massey, R. and Rowe, B. and Schrabback, T. and Voigt, L. and Balan, S. and Bernstein, G. and Bethge, M. and Bridle, S. and Courbin, F. and Gentile, M. and Heavens, A. and Hirsch, M. and Hosseini, R. and Kiessling, A. and Kirk, D. and Kuijken, K. and Mandelbaum, R. and Moghaddam, B. and Nurbaeva, G. and Paulin-Henriksson, S. and Rassat, A. and Rhodes, J. and Sch{\"o}lkopf, B. and Shawe-Taylor, J. and Shmakova, M. and Taylor, A. and Velander, M. and van Waerbeke, L. and Witherick, D. and Wittman, D.},
  journal = {Annals of Applied Statistics},
  volume = {5},
  number = {3},
  pages = {2231-2263},
  month = sep,
  year = {2011},
  month_numeric = {9}
}